| Tail Number / N-Number | N999ST |
| Manufacturer | NELSON 2 |
| Model | RV6A |
| Year Built | 1996 |
| Manufacturer's Serial Number | 23994 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | MAPES NEAL E |
| Street | 310 NE MARIPOSA AVE |
| City | PRINEVILLE |
| State | OR |
| Zip Code | 97754-9175 |
| Region | Northwest Mountain |
| County | Crook County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1996-12-23 |
| Certificate Issue Date | 2022-10-18 |
| Last Action Date | 2022-10-18 |
| Expiration Date | 2029-10-31 |
| Status | Valid Registration |
| Mode S Code | 53372664 |
| Mode S Code Hex | ADF5B4 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N999ST.
| Tail Number / N-Number | N999ST |
| Manufacturer | GULFSTREAM AM CORP COMM DIV |
| Model | 695 |
| Manufacturer's Serial Number | 95080 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| County | Crook County |
| Last Status | N-Number Assigned – but has not yet been registered |